Trumpism isn't what concerns me. Well it does but I'm pretty sure it will loss momentum and we'll move on to the next dumb thing as you said.
It is the internet ability to hack society that has me worried. I don't think the USA is safe from the Orwellian dystopia being created in China. In fact, we're already part of the way their. Our AI technology is even better then theirs, the FBI used similar facial recognition software to that used in Xinjiang to identify vandals during the George Floyd protest, and companies have been approaching local police to integrate such AI technology into body cams. The internet and social media penetrates just as deep into our society. The NSA and other intelligence apparatuses already engage in mass surveillance of the populous. The only thing we're missing is the centralization of all of these pieces and a concentrated effort to put in place the necessary infrastructure to complete the creation of a this orwellian state, and my gut tells me that secretly they are working on just that.
In truth, the 21st century, especially the automation revolution, excites and scares me. The potential of technology seems limiteless, but on the other hand I don't see how liberal ideals are going to triumph.
As far as US politics go, I'm just looking forward to this clown finally being out of office and a return to just not having to deal with an insane president for at least 4 years. But looking further into the future, I'm not so optimistic about societies future.
Even then, Trump has made it clear that an authoritarian can succeed in the US, and regardless of what side of the political spectrum they fall on , it is clear we are not ready for when that Authoritrian actually has some brain cells and isn't a senile old man.